Note 2104 — BOOK IV. AN ACCOUNT OF COUNTRIES, NATIONS, SEAS, TOWNS, HAVENS, MOUNTAINS, RIVERS, DISTANCES, AND PEOPLES WHO NOW EXIST OR FORMERLY EXISTED.
John Bostock translation
Pouqueville has shown that Pliny is in error here, and he says that the Acheron is the modern Mavro Potamos; but according to Leake, the name of it is Gurla, or the river of Suli. It flows into the Port Fanari, formerly called Glykys Limen, or Sweet Harbour, from the freshness of the water there. The Acherusian Lake is probably the great marsh that lies below Kastri.